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Jason Alexander

Jason Alexander

ActingBorn September 23, 1959 (66 years old)

Newark, New Jersey, USA

IMDbInstagramX

Biography

Jay Scott Greenspan (born September 23, 1959), better known by his professional name of Jason Alexander, is an American actor, writer, comedian, television director and producer, and singer. He is best known for his role as George Costanza on the television series Seinfeld, appearing in the sitcom from 1989 to 1998. He also has had an active career on the stage, appearing in several Broadway musicals including Jerome Robbins' Broadway in 1989, for which he won the Tony Award as Best Actor in a Musical. He appeared in the Los Angeles production of The Producers with Martin Short. He is the Artistic Director of "Reprise! Broadway's Best in Los Angeles," where he has directed several musicals. Alexander is also an avid poker player.

Also known as: Jason Scott Greenspan , جیسون الکساندر, Jay Scott Greenspan
Popularity: 2
Total credits: 224

Known For

Criminal Minds
TV
★8.3

Criminal Minds

as Prof. Rothchild

The Simpsons
TV
★8.0

The Simpsons

as Bourbon Verlander (voice)

Movies (103)

Jimmy

Jimmy

as Louis B. Mayer

2026

The Gettysburg Address

The Gettysburg Address

as Noah Brooks (voice)

2025

Paddy Chayefsky: Collector of Words

TV Shows (107)

Criminal Minds

Criminal Minds

as Prof. Rothchild

1 ep.

The Simpsons

The Simpsons

as Bourbon Verlander (voice)

1 ep.

The Late Show with Stephen Colbert

Behind the Camera

Criminal Minds

Criminal Minds

Director

Young Sheldon

Young Sheldon

Director

Seinfeld

Seinfeld

Director

Photos

The Late Show with Stephen Colbert
TV
★6.1

The Late Show with Stephen Colbert

as Self - Guest

American Dad!
TV
★7.0

American Dad!

as Mr. Orlando (voice)

Late Night with Seth Meyers
TV
★5.2

Late Night with Seth Meyers

as Self - Guest

Friends
TV
★8.4

Friends

as Earl

Two and a Half Men
TV
★7.5

Two and a Half Men

as Dr. Goodman

Young Sheldon
TV
★8.0

Young Sheldon

as Gene Lundy

Seinfeld
TV
★8.3

Seinfeld

as George Costanza

Real Time with Bill Maher
TV
★6.0

Real Time with Bill Maher

as Self

Saturday Night Live
TV
★6.9

Saturday Night Live

as Self - Host

Monk
TV
★8.0

Monk

as Marty Eels

Criminal Minds
TV
★8.3

Criminal Minds

as Prof. Rothchild

2005

The Simpsons
TV
★8.0

The Simpsons

as Bourbon Verlander (voice)

1989

The Late Show with Stephen Colbert
TV
★6.1

The Late Show with Stephen Colbert

as Self - Guest

2015

American Dad!
TV
★7.0

American Dad!

as Mr. Orlando (voice)

2005

Late Night with Seth Meyers
TV
★5.2

Late Night with Seth Meyers

as Self - Guest

2014

Friends
TV
★8.4

Friends

as Earl

1994

Two and a Half Men
TV
★7.5

Two and a Half Men

as Dr. Goodman

2003

Young Sheldon
TV
★8.0

Young Sheldon

as Gene Lundy

2017

Seinfeld
TV
★8.3

Seinfeld

as George Costanza

1989

Real Time with Bill Maher
TV
★6.0

Real Time with Bill Maher

as Self

2003

Saturday Night Live
TV
★6.9

Saturday Night Live

as Self - Host

1975

Monk
TV
★8.0

Monk

as Marty Eels

2002

Paddy Chayefsky: Collector of Words

as Self

2025

Stealing Pulp Fiction

Stealing Pulp Fiction

as Dr. Mendelbaum

2025

The Electric State

The Electric State

as Ted / Wingman

2025

Dick Van Dyke: 98 Years of Magic

Dick Van Dyke: 98 Years of Magic

as Self - Performer

2023

Leo

Leo

as Jayda's Dad (voice)

2023

The Conspiracy

The Conspiracy

2022

Killing Me Softly with His Songs

Killing Me Softly with His Songs

as Self

2022

Out of Office

Out of Office

2022

Cinderella: The Reunion, A Special Edition of 20/20

Cinderella: The Reunion, A Special Edition of 20/20

as Self

2022

Dunston Checks Out

Dunston Checks Out

as Jason Alexander (archival footage)

2022

Broadway: Beyond the Golden Age

Broadway: Beyond the Golden Age

as Self

2021

The Rocky Horror Musical Live Stream

The Rocky Horror Musical Live Stream

as Narrator

2020

Faith Based

Faith Based

as Nicky Steele

2020

My Boyfriend's Meds

My Boyfriend's Meds

as Dr. Sternbach

2020

The Portuguese Kid

The Portuguese Kid

as Barry Dragonetti

2018

Bucky and the Squirrels

Bucky and the Squirrels

as Jason Alexander

2018

The Truth Is in the Stars

The Truth Is in the Stars

as Self

2017

The Mark Lembeck Technique

The Mark Lembeck Technique

as Mark Lembeck

2016

Best Worst Thing That Ever Could Have Happened...

Best Worst Thing That Ever Could Have Happened...

as Self

2016

For the Love of Spock

For the Love of Spock

as Self

2016

There's Something About Romcoms

There's Something About Romcoms

as Self

2016

Tom and Jerry: Back to Oz

Tom and Jerry: Back to Oz

as Mr. Bibb / The Nome King (voice)

2016

Jimmy

Jimmy

as Louis B. Mayer

2026

The Gettysburg Address

The Gettysburg Address

as Noah Brooks (voice)

2025

Paddy Chayefsky: Collector of Words

Paddy Chayefsky: Collector of Words

as Self

2025

Stealing Pulp Fiction

Stealing Pulp Fiction

as Dr. Mendelbaum

2025

The Electric State

The Electric State

as Ted / Wingman

2025

Dick Van Dyke: 98 Years of Magic

Dick Van Dyke: 98 Years of Magic

as Self - Performer

2023

Leo

Leo

as Jayda's Dad (voice)

2023

The Conspiracy

The Conspiracy

2022

Killing Me Softly with His Songs

Killing Me Softly with His Songs

as Self

2022

Out of Office

Out of Office

2022

Cinderella: The Reunion, A Special Edition of 20/20

Cinderella: The Reunion, A Special Edition of 20/20

as Self

2022

Dunston Checks Out

Dunston Checks Out

as Jason Alexander (archival footage)

2022

Broadway: Beyond the Golden Age

Broadway: Beyond the Golden Age

as Self

2021

The Rocky Horror Musical Live Stream

The Rocky Horror Musical Live Stream

as Narrator

2020

Faith Based

Faith Based

as Nicky Steele

2020

My Boyfriend's Meds

My Boyfriend's Meds

as Dr. Sternbach

2020

The Portuguese Kid

The Portuguese Kid

as Barry Dragonetti

2018

Bucky and the Squirrels

Bucky and the Squirrels

as Jason Alexander

2018

The Truth Is in the Stars

The Truth Is in the Stars

as Self

2017

The Mark Lembeck Technique

The Mark Lembeck Technique

as Mark Lembeck

2016

Best Worst Thing That Ever Could Have Happened...

Best Worst Thing That Ever Could Have Happened...

as Self

2016

For the Love of Spock

For the Love of Spock

as Self

2016

There's Something About Romcoms

There's Something About Romcoms

as Self

2016

Tom and Jerry: Back to Oz

Tom and Jerry: Back to Oz

as Mr. Bibb / The Nome King (voice)

2016

The Late Show with Stephen Colbert

as Self - Guest

1 ep.

American Dad!

American Dad!

as Mr. Orlando (voice)

1 ep.

Late Night with Seth Meyers

Late Night with Seth Meyers

as Self - Guest

1 ep.

Friends

Friends

as Earl

1 ep.

Two and a Half Men

Two and a Half Men

as Dr. Goodman

1 ep.

Young Sheldon

Young Sheldon

as Gene Lundy

5 ep.

Seinfeld

Seinfeld

as George Costanza

180 ep.

Real Time with Bill Maher

Real Time with Bill Maher

as Self

8 ep.

Saturday Night Live

Saturday Night Live

as Self - Host

1 ep.

Monk

Monk

as Marty Eels

1 ep.

Curb Your Enthusiasm

Curb Your Enthusiasm

as Jason Alexander

5 ep.

Malcolm in the Middle

Malcolm in the Middle

as Leonard

1 ep.

The Late Late Show with Craig Ferguson

The Late Late Show with Craig Ferguson

as Self

1 ep.

Star Trek: Voyager

Star Trek: Voyager

as Kurros

1 ep.

The Late Late Show with James Corden

The Late Late Show with James Corden

as Self

1 ep.

The Nanny

The Nanny

as Jack

1 ep.

Jeopardy!

Jeopardy!

as Self

1 ep.

The Tom and Jerry Show

The Tom and Jerry Show

as Rick (voice)

52 ep.

LIVE with Kelly and Mark

LIVE with Kelly and Mark

as Self - Guest

1 ep.

Jimmy Kimmel Live!

Jimmy Kimmel Live!

as Self

2 ep.

Hollywood Squares

Hollywood Squares

as Self - Panelist

30 ep.

Robot Chicken

Robot Chicken

as Krampus (voice)

1 ep.

Criminal Minds

Criminal Minds

as Prof. Rothchild

1 episodes

The Simpsons

The Simpsons

as Bourbon Verlander (voice)

1 episodes

The Late Show with Stephen Colbert

The Late Show with Stephen Colbert

as Self - Guest

1 episodes

American Dad!

American Dad!

as Mr. Orlando (voice)

1 episodes

Late Night with Seth Meyers

Late Night with Seth Meyers

as Self - Guest

1 episodes

Friends

Friends

as Earl

1 episodes

Two and a Half Men

Two and a Half Men

as Dr. Goodman

1 episodes

Young Sheldon

Young Sheldon

as Gene Lundy

5 episodes

Seinfeld

Seinfeld

as George Costanza

180 episodes

Real Time with Bill Maher

Real Time with Bill Maher

as Self

8 episodes

Saturday Night Live

Saturday Night Live

as Self - Host

1 episodes

Monk

Monk

as Marty Eels

1 episodes

Curb Your Enthusiasm

Curb Your Enthusiasm

as Jason Alexander

5 episodes

Malcolm in the Middle

Malcolm in the Middle

as Leonard

1 episodes

The Late Late Show with Craig Ferguson

The Late Late Show with Craig Ferguson

as Self

1 episodes

Star Trek: Voyager

Star Trek: Voyager

as Kurros

1 episodes

The Late Late Show with James Corden

The Late Late Show with James Corden

as Self

1 episodes

The Nanny

The Nanny

as Jack

1 episodes

Jeopardy!

Jeopardy!

as Self

1 episodes

The Tom and Jerry Show

The Tom and Jerry Show

as Rick (voice)

52 episodes

LIVE with Kelly and Mark

LIVE with Kelly and Mark

as Self - Guest

1 episodes

Jimmy Kimmel Live!

Jimmy Kimmel Live!

as Self

2 episodes

Hollywood Squares

Hollywood Squares

as Self - Panelist

30 episodes

Robot Chicken

Robot Chicken

as Krampus (voice)

1 episodes

Everybody Hates Chris

Everybody Hates Chris

Director

Mike & Molly

Mike & Molly

Director

Remember WENN

Remember WENN

Director

Campus Ladies

Campus Ladies

Director

Agent Cody Banks

Agent Cody Banks

Executive Producer

Bob Patterson

Bob Patterson

Executive Producer

Agent Cody Banks 2: Destination London

Agent Cody Banks 2: Destination London

Executive Producer

Dinner with Dad

Dinner with Dad

Writer

Just Looking

Just Looking

Director

Criminal Minds

Criminal Minds

Director

Young Sheldon

Young Sheldon

Director

Seinfeld

Seinfeld

Director

Everybody Hates Chris

Everybody Hates Chris

Director

Mike & Molly

Mike & Molly

Director

Remember WENN

Remember WENN

Director

Campus Ladies

Campus Ladies

Director

Agent Cody Banks

Agent Cody Banks

Executive Producer

Bob Patterson

Bob Patterson

Executive Producer

Agent Cody Banks 2: Destination London

Agent Cody Banks 2: Destination London

Executive Producer

Dinner with Dad

Dinner with Dad

Writer

Just Looking

Just Looking

Director